FIELD: gas-turbine engines. SUBSTANCE: flame tube has double-layer walls bounding gas chamber. Double-layer walls are made of separate segments provided with cooling chambers. One layer is made in form of deflector and cooling chambers are made in form of cyclones interconnected by means of tangential passages forming inlet, intermediate and outlet chambers. Intermediate chamber is provided with central body arranged in it. Central body has attachment member in its periphery portion for securing the deflector to segment. Diameter of central body is equal to 20 to 30 percent of diameter of cyclone portion. EFFECT: enhanced reliability due to enhanced efficiency of cooling. 4 dwg
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